Brand: SKF
SKF 6311-Z/C3 Deep Groove Ball Bearing | 55x120x29mm | Single Shield, C3 Internal Clearance
The SKF 6311-Z/C3 deep groove ball bearing is engineered for demanding industrial applications requiring high load capacity and operational reliability. This specific variant features a robust 55 mm bore, 120 mm outer diameter, and 29 mm width, utilizing the heavy-duty 63 series design. The 'Z' designation indicates a pressed steel shield integrated on one side, which effectively protects the internal raceways and rolling elements from dust and larger contaminants while retaining factory lubrication. Crucially, the internal radial clearance designation 'C3' is greater than normal, making this bearing ideal for environments where thermal expansion is expected, or where interference fits are utilized, ensuring optimal operational temperature management and minimizing the risk of premature failure due to constrained geometry.
Built to SKF's rigorous standards, the 6311-Z/C3 offers superior performance in critical machinery such as large industrial electric motors, centrifugal pumps, heavy-duty gearboxes, and industrial fans. This product delivers low friction, exceptional speed capability (up to 7000 rpm with grease lubrication), and substantial dynamic load ratings (Cr: 71.5 kN). By choosing SKF, businesses benefit from globally standardized dimensional accuracy, consistent quality control, and reduced total ownership costs due to extended maintenance intervals and maximized uptime. This bearing is the choice for maintenance managers prioritizing longevity and resistance to harsh operating conditions.
Key Features
C3 Internal Clearance optimized for high-speed operation and thermal expansion management.
Single 'Z' Shield provides robust protection against moderate dust and contamination.
Heavy-duty 63 series design ensures high radial and axial load carrying capability.
Precision-machined raceways guarantee low friction and reduced operating noise.
Manufactured by SKF, ensuring world-class material quality and dimensional consistency.
